FPOA induces apoptosis in HeLa human cervical cancer cells through a caspase-mediated pathway

Area of Science:

• Natural Product Chemistry
• Cell Biology
• Cancer Research

Background:

• Fomitopsis pinicola is a fungus known for producing bioactive compounds.
• Triterpenoids are a class of natural products with diverse pharmacological activities.
• Understanding the mechanisms of natural compounds against cancer is crucial for drug discovery.

Purpose of the Study:

• To investigate the anti-cancer effects of 3-acetoxylanosta-8,24-dien-21-oic acid (FPOA) on HeLa cervical cancer cells.
• To elucidate the mechanism by which FPOA induces cell death.

Main Methods:

• Cell viability was assessed using MTT assay.
• Apoptosis was detected morphologically (DAPI staining) and quantitatively (Annexin V-FITC/PI staining).
• Apoptosis-associated protein expression (Bax, Bcl-2, Caspase-3, Caspase-9) was analyzed by Western blot.

Main Results:

• FPOA significantly inhibited HeLa cell proliferation in a dose- and time-dependent manner (IC50 values ranging from 11.79 to 25.28 µg/ml).
• FPOA treatment led to characteristic apoptotic morphological changes and increased the percentage of apoptotic cells.
• FPOA upregulated pro-apoptotic proteins (Bax, cleaved Caspase-3, cleaved Caspase-9) and downregulated anti-apoptotic protein (Bcl-2).

Conclusions:

• FPOA exhibits potent anti-proliferative activity against HeLa cervical cancer cells.
• FPOA induces apoptosis in HeLa cells through the intrinsic mitochondrial pathway, involving caspase activation.
• FPOA represents a potential candidate for the development of novel anti-cervical cancer therapies.